@article{1178241081, author = {Takagi, Hitoshi}, title = {On curvature homogeneity of Riemannian manifolds}, journal = {Tohoku Math. J. (2)}, volume = {26}, number = {4}, year = {1974}, pages = { 581-585}, language = {en}, url = {http://dml.mathdoc.fr/item/1178241081} }
Takagi, Hitoshi. On curvature homogeneity of Riemannian manifolds. Tohoku Math. J. (2), Tome 26 (1974) no. 4, pp. 581-585. http://gdmltest.u-ga.fr/item/1178241081/